No, Makita 18V LXT batteries cannot be used directly in 40V XGT tools. The platforms have different physical connections and voltages. Makita ADP10 is a charging adapter: it allows supported 18V LXT batteries to be charged on compatible XGT chargers. It is not a two-battery adapter for powering XGT tools. Follow the exact charger, adapter and battery compatibility instructions.
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The Short Answer
Makita 18V LXT and 40V max XGT batteries are not cross-compatible. They use different battery connections and voltages, so an LXT battery does not fit an XGT tool, or the other way round. Both systems use tool-to-battery communication, but each only within its own platform.
Why Are They Incompatible?
Makita designed the 40V XGT platform as a step up from the 18V LXT system. The key differences are:
Voltage: LXT batteries are 18V; XGT is Makita’s 40V max system, and XGT tools are built for that voltage.
Physical design: the battery connection is different between the two systems, so the packs do not slide onto each other’s tools.
Smart communication: both systems use it. Makita says XGT tool and battery microchips communicate in real time to monitor heat, load and output, and that LXT’s Star Protection enables real-time communication between tool and battery. Each works only within its own platform.
The Makita ADP10 Adapter — Charging LXT Batteries on XGT Chargers
Makita ADP10 is a charging adapter: it allows supported 18V LXT batteries to be charged on compatible XGT chargers. It is not a two-battery adapter for powering XGT tools. Follow the exact charger, adapter and battery compatibility instructions.
Can You Use XGT Batteries in LXT Tools?
We have not verified a manufacturer-approved tool-use adapter for this exact combination. Use the battery platform specified by the tool maker; a charging adapter is not evidence of tool-use interchangeability.
What About the Makita CXT 12V Range?
Makita’s 12V CXT slide-type batteries are a separate platform and are not directly compatible with LXT or XGT tools. We have not verified a manufacturer-approved tool-use adapter for this exact combination. Use the battery platform specified by the tool maker; a charging adapter is not evidence of tool-use interchangeability.
Which Platform Should You Buy Into?
If you’re starting fresh, the decision comes down to what tools you need. The 18V LXT range is Makita’s largest platform, with over 325 tools (Makita UK) — it covers everything from drills and impact drivers to garden tools and vacuums. The 40V XGT platform is designed for high-power applications where 18V isn’t enough, such as large angle grinders, mitre saws, and demolition hammers.
You can own both platforms and use each tool with its specified battery. Makita ADP10 is a charging adapter: it allows supported 18V LXT batteries to be charged on compatible XGT chargers. It is not a two-battery adapter for powering XGT tools. Follow the exact charger, adapter and battery compatibility instructions.
Frequently Asked Questions
Can I put a Makita 18V battery in a 40V tool?
No, not directly. Use the battery platform specified for the exact tool. Makita ADP10 is a charging adapter: it allows supported 18V LXT batteries to be charged on compatible XGT chargers. It is not a two-battery adapter for powering XGT tools. Follow the exact charger, adapter and battery compatibility instructions.
Are Makita LXT and XGT batteries the same size?
No. LXT and XGT use different battery connections, so XGT batteries do not fit LXT tools and LXT batteries do not fit XGT tools. Makita’s ADP10 is a charging adapter only.
Does the ADP10 adapter work with all XGT tools?
No. Makita ADP10 is a charging adapter: it allows supported 18V LXT batteries to be charged on compatible XGT chargers. It is not a two-battery adapter for powering XGT tools. Follow the exact charger, adapter and battery compatibility instructions.
Will using the adapter void my Makita warranty?
ADP10 is a charging accessory, not a tool-power converter. Use only charger, adapter and battery combinations specified by Makita. Warranty consequences depend on the applicable terms and cause of failure; check with Makita or your dealer for your exact combination.
Can I charge LXT and XGT batteries on the same charger?
Use a charger and any adapter expressly specified by Makita for the exact battery. Makita ADP10 is a charging adapter: it allows supported 18V LXT batteries to be charged on compatible XGT chargers. It is not a two-battery adapter for powering XGT tools. Follow the exact charger, adapter and battery compatibility instructions.
Related Guides
- Every Makita 18V LXT Battery Compared
- Every Makita 18V LXT Tool and Which Batteries Fit
- Makita 18V LXT Charger Compatibility Guide
- Makita 18V LXT vs 40V XGT
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How we compile this guide
We cross-reference compatibility details against manufacturer specifications where available, official tool manuals, and the physical standards that govern fitment (bore sizes, arbor diameters, voltage platforms, connector types). We prioritise primary sources over retailer listings, flag anything we can’t confirm, and re-verify the data on a regular cycle. Where we give a buying recommendation, we tell you the reasoning — not just the link. More on our method →
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